spend 10-100 hours gathering people together to continuously report how they feel in their bodies to each other and you will learn a lot of things. mostly you'll learn that everyone is suffering
more wild speculation: when kids yawn in school it's not because they're "bored," it's because they both don't want to be there and can't leave and yawning is a symptom of that internal conflict ("emotional narcolepsy")
to say it in more detail, i think often when people describe being bored what they mean is they're craving a distraction from some unpleasant thought / feeling; in that thread i QT'd the unpleasant thought / feeling is "i don't want to be here"